Registration Dossier

Administrative data

Endpoint:
boiling point
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Cross-reference
Reason / purpose:
data waiving: supporting information
Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
08 Mar 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
no
Type of method:
differential scanning calorimetry
Melting / freezing pt.:
>= 50 - <= 80 °C
Atm. press.:
ca. 1 013 hPa
Decomposition:
yes
Decomp. temp.:
230 °C

The test item was white powder before heating. Just a part of the item changed transparent at about 50 °C, then the most part of the test item changed transparent between 70 °C to 80 °C.

Decomposition with weight loss is from around 230 °C.

Because the test item is substances of UVCB, a clear peak does not appear and it gradually melts. The peak at 190 °C is the melting point of sucrose (impurities).

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion